Bella finds out page 123 of breaking dawn although I'm not sure what page he gets her pregnant but it is in or after chapter 5.
In order for Twilight * Page 274 (Edward says it) * Page 314 (Bella says it) * Page 366 (Edward says it in many words) * Page 418 (Edward and Bella) * Page 456 (Edward says it) * Page 479 (Edward and Bella) * Page 498 (Bella says it)
edward and Bella's graduation begins on page 352 in eclipse. i am on page 355!
Bella realizes she is pregnant on page 123 when she is on her honeymoon with Edward on isle Esme when she is in the bathroom with her suitcase looking for pepto bismol and finds a little blue box of tampons in her bag and realizes her period is 5 days late.
edward first says hello to Bella on page 43
about page 80
Edward tells Bella that she is his life now in "Twilight" on page 221.
It's not in there since it is from Bella's POV but one can assume she told him sometime during the days that Alice was staying with Bella
Page 43.
The first time Edward says i love you directly to Bella is in Twilight page 319
Edward leaves Bella in New Moon chapter 3, page 60. =)
It starts on page 48
Page 540 of New Moon